Bad filter caps in a power supply? Bah, those things last for decades and NEVER fail.

I think the real problem is that you need gold plating on your panel bus bars and Monster brand wire to a special new audio-grade receptacle. laugh

https://www.electrical-contractor.n...1/Receptacles_for_Stereophiles#Post66551
https://www.electrical-contractor.net/forums/ubbthreads.php/topics/67554/1
https://www.electrical-contractor.n...8952/499_Denon_Ethernet_cable#Post178952
https://www.electrical-contractor.n...ics/160643/oxygen_free_copper#Post160643

Get all that stuff, and your amp will sound like a million bucks! laugh